320 PROCEEDINGS OF THE ACADEMY OF [May, 



Length of body 31. mm. 24. mm. 



Length of pronotum 5.5 " 4.5 " 



Length of tegmen 20+ " 17. '' 



Length of caudal femur 17.8 " 12.8 " 



The range of this species is now known to extend as far west as the 



eastern foot of the Andes. 



Euplectrotettix prasinus Brunei. 



1900. Euplectrotettix prasinus Bruner, ibid., p. 42, fig. 14 (erroneously titled 

 conspersus). [Cordoba, Argentina.] 



Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. February 

 23, 1907. One male. 



Cordillera de Mendoza. March 20, 1908. One female. 



It is evident that this species has at least two color phases, one 

 largely green and the other several shades of brownish, the latter in 

 the extreme condition with little contrast in tones. In addition to 

 these phases there is one form which has the dorsum of the pronotum 

 uniform in color, and another with broad lateral longitudinal iDars of 

 velvety black on the same. The above-listed female and a typical 

 female from Cordoba, loaned by Prof. Bruner, have the uniform 

 pronotum, one in the green phase, the other in the brown phase. 

 The Chacras de Coria male and a female from Cordoba, from Bruner 

 and labelled schulzi by him, have the dorsum of the pronotum 

 barred, the Chacras de Coria male being a well-contrasted brownish 

 individual and the female strongly approaching the green phase. 



The lateral carinae of the pronotum are the same in all of the- 

 specimens, converging caudad to the first transverse sulcus, thence 

 regularly diverging. In the male the tegmina are proportionately 

 longer than in any other species of the genus and the whole form of 

 the same sex is decidedly compressed. 



The measurements of the above-mentioned specimens are as follows : 



Male Female 



Chacras Female Female Cordillera 



de Coria. Cordoba. Cordoba, de Mendoza. 



mm. mm. mm. mm. 



Length of body 20. 23.5 31.3" 25.5 



Length of pronotum 4.2 4.6 5. 5.1 



Length of tegmen 20. 20.5 21.5 20.8 



Length of caudal femur ... 13.2 14.4 15.5 15.5 



This species is known only from the Provinces of Cordoba and 

 Mendoza, Argentina. 



Abdomen greatly and abnormally distended. 



